#ifndef HEADER_BIO_H
#define HEADER_BIO_H

#include "e_os2.h"

#include "crypto.h"
#include "myfunction.h"

#ifdef __cplusplus
extern "C" {
#endif

/* These are the 'types' of BIOs */
#define BIO_TYPE_NONE 0
#define BIO_TYPE_MEM (1 | 0x0400)
#define BIO_TYPE_FILE (2 | 0x0400)

#define BIO_TYPE_FD (4 | 0x0400 | 0x0100)
#define BIO_TYPE_SOCKET (5 | 0x0400 | 0x0100)
#define BIO_TYPE_NULL (6 | 0x0400)
#define BIO_TYPE_SSL (7 | 0x0200)
#define BIO_TYPE_MD (8 | 0x0200) /* passive filter */
#define BIO_TYPE_BUFFER (9 | 0x0200) /* filter */
#define BIO_TYPE_CIPHER (10 | 0x0200) /* filter */
#define BIO_TYPE_BASE64 (11 | 0x0200) /* filter */
#define BIO_TYPE_CONNECT (12 | 0x0400 | 0x0100) /* socket - connect */
#define BIO_TYPE_ACCEPT (13 | 0x0400 | 0x0100) /* socket for accept */
#define BIO_TYPE_PROXY_CLIENT (14 | 0x0200) /* client proxy BIO */
#define BIO_TYPE_PROXY_SERVER (15 | 0x0200) /* server proxy BIO */
#define BIO_TYPE_NBIO_TEST (16 | 0x0200) /* server proxy BIO */
#define BIO_TYPE_NULL_FILTER (17 | 0x0200)
#define BIO_TYPE_BER (18 | 0x0200) /* BER -> bin filter */
#define BIO_TYPE_BIO (19 | 0x0400) /* (half a) BIO pair */
#define BIO_TYPE_LINEBUFFER (20 | 0x0200) /* filter */
#define BIO_TYPE_DGRAM (21 | 0x0400 | 0x0100)
#define BIO_TYPE_COMP (23 | 0x0200) /* filter */

#define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */
#define BIO_TYPE_FILTER 0x0200
#define BIO_TYPE_SOURCE_SINK 0x0400

/* BIO_FILENAME_READ|BIO_CLOSE to open or close on free.
 * BIO_set_fp(in,stdin,BIO_NOCLOSE); */
#define BIO_NOCLOSE 0x00
#define BIO_CLOSE 0x01

/* These are used in the following macros and are passed to
 * BIO_ctrl() */
#define BIO_CTRL_RESET 1 /* opt - rewind/zero etc */
#define BIO_CTRL_EOF 2 /* opt - are we at the eof */
#define BIO_CTRL_INFO 3 /* opt - extra tit-bits */
#define BIO_CTRL_SET 4 /* man - set the 'IO' type */
#define BIO_CTRL_GET 5 /* man - get the 'IO' type */
#define BIO_CTRL_PUSH 6 /* opt - internal, used to signify change */
#define BIO_CTRL_POP 7 /* opt - internal, used to signify change */
#define BIO_CTRL_GET_CLOSE 8 /* man - set the 'close' on free */
#define BIO_CTRL_SET_CLOSE 9 /* man - set the 'close' on free */
#define BIO_CTRL_PENDING 10 /* opt - is their more data buffered */
#define BIO_CTRL_FLUSH 11 /* opt - 'flush' buffered output */
#define BIO_CTRL_DUP 12 /* man - extra stuff for 'duped' BIO */
#define BIO_CTRL_WPENDING 13 /* opt - number of bytes still to write */
/* callback is int cb(BIO *bio,state,ret); */
#define BIO_CTRL_SET_CALLBACK 14 /* opt - set callback function */
#define BIO_CTRL_GET_CALLBACK 15 /* opt - set callback function */

#define BIO_CTRL_SET_FILENAME 30 /* BIO_s_file special */

/* dgram BIO stuff */
#define BIO_CTRL_DGRAM_CONNECT 31 /* BIO dgram special */
#define BIO_CTRL_DGRAM_SET_CONNECTED                                           \
	32 /* allow for an externally
					  * connected socket to be
					  * passed in */
#define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33 /* setsockopt, essentially */
#define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34 /* getsockopt, essentially */
#define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35 /* setsockopt, essentially */
#define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36 /* getsockopt, essentially */

#define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37 /* flag whether the last */
#define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38 /* I/O operation tiemd out */

/* #ifdef IP_MTU_DISCOVER */
#define BIO_CTRL_DGRAM_MTU_DISCOVER 39 /* set DF bit on egress packets */
/* #endif */

#define BIO_CTRL_DGRAM_QUERY_MTU 40 /* as kernel for current MTU */
#define BIO_CTRL_DGRAM_GET_MTU 41 /* get cached value for MTU */
#define BIO_CTRL_DGRAM_SET_MTU                                                 \
	42 /* set cached value for
					      * MTU. want to use this
					      * if asking the kernel
					      * fails */

#define BIO_CTRL_DGRAM_MTU_EXCEEDED                                            \
	43 /* check whether the MTU
					      * was exceed in the
					      * previous write
					      * operation */

#define BIO_CTRL_DGRAM_GET_PEER 46
#define BIO_CTRL_DGRAM_SET_PEER 44 /* Destination for the data */

#define BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT                                        \
	45 /* Next DTLS handshake timeout to
											  * adjust socket timeouts */

/* modifiers */
#define BIO_FP_READ 0x02
#define BIO_FP_WRITE 0x04
#define BIO_FP_APPEND 0x08
#define BIO_FP_TEXT 0x10

#define BIO_FLAGS_READ 0x01
#define BIO_FLAGS_WRITE 0x02
#define BIO_FLAGS_IO_SPECIAL 0x04
#define BIO_FLAGS_RWS (BIO_FLAGS_READ | BIO_FLAGS_WRITE | BIO_FLAGS_IO_SPECIAL)
#define BIO_FLAGS_SHOULD_RETRY 0x08
#ifndef BIO_FLAGS_UPLINK
/* "UPLINK" flag denotes file descriptors provided by application.
   It defaults to 0, as most platforms don't require UPLINK interface. */
#define BIO_FLAGS_UPLINK 0
#endif

/* Used in BIO_gethostbyname() */
#define BIO_GHBN_CTRL_HITS 1
#define BIO_GHBN_CTRL_MISSES 2
#define BIO_GHBN_CTRL_CACHE_SIZE 3
#define BIO_GHBN_CTRL_GET_ENTRY 4
#define BIO_GHBN_CTRL_FLUSH 5

/* Mostly used in the SSL BIO */
/* Not used anymore
 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10
 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20
 * #define BIO_FLAGS_PROTOCOL_STARTUP	0x40
 */

#define BIO_FLAGS_BASE64_NO_NL 0x100

/* This is used with memory BIOs: it means we shouldn't free up or change the
 * data in any way.
 */
#define BIO_FLAGS_MEM_RDONLY 0x200

typedef struct bio_st BIO;

void BIO_set_flags(BIO *b, int flags);
int BIO_test_flags(const BIO *b, int flags);
void BIO_clear_flags(BIO *b, int flags);

#define BIO_get_flags(b) BIO_test_flags(b, ~(0x0))
#define BIO_set_retry_special(b)                                               \
	BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL | BIO_FLAGS_SHOULD_RETRY))
#define BIO_set_retry_read(b)                                                  \
	BIO_set_flags(b, (BIO_FLAGS_READ | BIO_FLAGS_SHOULD_RETRY))
#define BIO_set_retry_write(b)                                                 \
	BIO_set_flags(b, (BIO_FLAGS_WRITE | BIO_FLAGS_SHOULD_RETRY))

/* These are normally used internally in BIOs */
#define BIO_clear_retry_flags(b)                                               \
	BIO_clear_flags(b, (BIO_FLAGS_RWS | BIO_FLAGS_SHOULD_RETRY))
#define BIO_get_retry_flags(b)                                                 \
	BIO_test_flags(b, (BIO_FLAGS_RWS | BIO_FLAGS_SHOULD_RETRY))

/* These should be used by the application to tell why we should retry */
#define BIO_should_read(a) BIO_test_flags(a, BIO_FLAGS_READ)
#define BIO_should_write(a) BIO_test_flags(a, BIO_FLAGS_WRITE)
#define BIO_should_io_special(a) BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL)
#define BIO_retry_type(a) BIO_test_flags(a, BIO_FLAGS_RWS)
#define BIO_should_retry(a) BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY)

/* The next three are used in conjunction with the
 * BIO_should_io_special() condition.  After this returns true,
 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO 
 * stack and return the 'reason' for the special and the offending BIO.
 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */
/* Returned from the SSL bio when the certificate retrieval code had an error */
#define BIO_RR_SSL_X509_LOOKUP 0x01
/* Returned from the connect BIO when a connect would have blocked */
#define BIO_RR_CONNECT 0x02
/* Returned from the accept BIO when an accept would have blocked */
#define BIO_RR_ACCEPT 0x03

/* These are passed by the BIO callback */
#define BIO_CB_FREE 0x01
#define BIO_CB_READ 0x02
#define BIO_CB_WRITE 0x03
#define BIO_CB_PUTS 0x04
#define BIO_CB_GETS 0x05
#define BIO_CB_CTRL 0x06

/* The callback is called before and after the underling operation,
 * The BIO_CB_RETURN flag indicates if it is after the call */
#define BIO_CB_RETURN 0x80
#define BIO_CB_return(a) ((a)|BIO_CB_RETURN))
#define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN))
#define BIO_cb_post(a) ((a)&BIO_CB_RETURN)

long (*BIO_get_callback(const BIO *b))(struct bio_st *, int, const char *, int,
				       long, long);
void BIO_set_callback(BIO *b, long (*callback)(struct bio_st *, int,
					       const char *, int, long, long));
char *BIO_get_callback_arg(const BIO *b);
void BIO_set_callback_arg(BIO *b, char *arg);

const char *BIO_method_name(const BIO *b);
int BIO_method_type(const BIO *b);

typedef void bio_info_cb(struct bio_st *, int, const char *, int, long, long);

#ifndef OPENSSL_SYS_WIN16
typedef struct bio_method_st {
	int type;
	const char *name;
	int (*bwrite)(BIO *, const char *, int);
	int (*bread)(BIO *, char *, int);
	int (*bputs)(BIO *, const char *);
	int (*bgets)(BIO *, char *, int);
	long (*ctrl)(BIO *, int, long, void *);
	int (*create)(BIO *);
	int (*destroy)(BIO *);
	long (*callback_ctrl)(BIO *, int, bio_info_cb *);
} BIO_METHOD;
#else
typedef struct bio_method_st {
	int type;
	const char *name;
	int(_far *bwrite)();
	int(_far *bread)();
	int(_far *bputs)();
	int(_far *bgets)();
	long(_far *ctrl)();
	int(_far *create)();
	int(_far *destroy)();
	long(_far *callback_ctrl)();
} BIO_METHOD;
#endif

struct bio_st {
	BIO_METHOD *method;
	/* bio, mode, argp, argi, argl, ret */
	long (*callback)(struct bio_st *, int, const char *, int, long, long);
	char *cb_arg; /* first argument for the callback */

	int init;
	int shutdown;
	int flags; /* extra storage */
	int retry_reason;
	int num;
	void *ptr;
	struct bio_st *next_bio; /* used by filter BIOs */
	struct bio_st *prev_bio; /* used by filter BIOs */
	int references;
	unsigned long num_read;
	unsigned long num_write;

	CRYPTO_EX_DATA ex_data;
};

DECLARE_STACK_OF(BIO)

typedef struct bio_f_buffer_ctx_struct {
	/* BIO *bio; */ /* this is now in the BIO struct */
	int ibuf_size; /* how big is the input buffer */
	int obuf_size; /* how big is the output buffer */

	char *ibuf; /* the char array */
	int ibuf_len; /* how many bytes are in it */
	int ibuf_off; /* write/read offset */

	char *obuf; /* the char array */
	int obuf_len; /* how many bytes are in it */
	int obuf_off; /* write/read offset */
} BIO_F_BUFFER_CTX;

/* connect BIO stuff */
#define BIO_CONN_S_BEFORE 1
#define BIO_CONN_S_GET_IP 2
#define BIO_CONN_S_GET_PORT 3
#define BIO_CONN_S_CREATE_SOCKET 4
#define BIO_CONN_S_CONNECT 5
#define BIO_CONN_S_OK 6
#define BIO_CONN_S_BLOCKED_CONNECT 7
#define BIO_CONN_S_NBIO 8
/*#define BIO_CONN_get_param_hostname	BIO_ctrl */

#define BIO_C_SET_CONNECT 100
#define BIO_C_DO_STATE_MACHINE 101
#define BIO_C_SET_NBIO 102
#define BIO_C_SET_PROXY_PARAM 103
#define BIO_C_SET_FD 104
#define BIO_C_GET_FD 105
#define BIO_C_SET_FILE_PTR 106
#define BIO_C_GET_FILE_PTR 107
#define BIO_C_SET_FILENAME 108
#define BIO_C_SET_SSL 109
#define BIO_C_GET_SSL 110
#define BIO_C_SET_MD 111
#define BIO_C_GET_MD 112
#define BIO_C_GET_CIPHER_STATUS 113
#define BIO_C_SET_BUF_MEM 114
#define BIO_C_GET_BUF_MEM_PTR 115
#define BIO_C_GET_BUFF_NUM_LINES 116
#define BIO_C_SET_BUFF_SIZE 117
#define BIO_C_SET_ACCEPT 118
#define BIO_C_SSL_MODE 119
#define BIO_C_GET_MD_CTX 120
#define BIO_C_GET_PROXY_PARAM 121
#define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */
#define BIO_C_GET_CONNECT 123
#define BIO_C_GET_ACCEPT 124
#define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125
#define BIO_C_GET_SSL_NUM_RENEGOTIATES 126
#define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127
#define BIO_C_FILE_SEEK 128
#define BIO_C_GET_CIPHER_CTX 129
#define BIO_C_SET_BUF_MEM_EOF_RETURN 130 /*return end of input value*/
#define BIO_C_SET_BIND_MODE 131
#define BIO_C_GET_BIND_MODE 132
#define BIO_C_FILE_TELL 133
#define BIO_C_GET_SOCKS 134
#define BIO_C_SET_SOCKS 135

#define BIO_C_SET_WRITE_BUF_SIZE 136 /* for BIO_s_bio */
#define BIO_C_GET_WRITE_BUF_SIZE 137
#define BIO_C_MAKE_BIO_PAIR 138
#define BIO_C_DESTROY_BIO_PAIR 139
#define BIO_C_GET_WRITE_GUARANTEE 140
#define BIO_C_GET_READ_REQUEST 141
#define BIO_C_SHUTDOWN_WR 142
#define BIO_C_NREAD0 143
#define BIO_C_NREAD 144
#define BIO_C_NWRITE0 145
#define BIO_C_NWRITE 146
#define BIO_C_RESET_READ_REQUEST 147
#define BIO_C_SET_MD_CTX 148

#define BIO_set_app_data(s, arg) BIO_set_ex_data(s, 0, arg)
#define BIO_get_app_data(s) BIO_get_ex_data(s, 0)

/* BIO_s_connect() and BIO_s_socks4a_connect() */
#define BIO_set_conn_hostname(b, name)                                         \
	BIO_ctrl(b, BIO_C_SET_CONNECT, 0, (char *)name)
#define BIO_set_conn_port(b, port)                                             \
	BIO_ctrl(b, BIO_C_SET_CONNECT, 1, (char *)port)
#define BIO_set_conn_ip(b, ip) BIO_ctrl(b, BIO_C_SET_CONNECT, 2, (char *)ip)
#define BIO_set_conn_int_port(b, port)                                         \
	BIO_ctrl(b, BIO_C_SET_CONNECT, 3, (char *)port)
#define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b, BIO_C_GET_CONNECT, 0)
#define BIO_get_conn_port(b) BIO_ptr_ctrl(b, BIO_C_GET_CONNECT, 1)
#define BIO_get_conn_ip(b) BIO_ptr_ctrl(b, BIO_C_GET_CONNECT, 2)
#define BIO_get_conn_int_port(b) BIO_int_ctrl(b, BIO_C_GET_CONNECT, 3, 0)

#define BIO_set_nbio(b, n) BIO_ctrl(b, BIO_C_SET_NBIO, (n), NULL)

/* BIO_s_accept_socket() */
#define BIO_set_accept_port(b, name)                                           \
	BIO_ctrl(b, BIO_C_SET_ACCEPT, 0, (char *)name)
#define BIO_get_accept_port(b) BIO_ptr_ctrl(b, BIO_C_GET_ACCEPT, 0)
/* #define BIO_set_nbio(b,n)	BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
#define BIO_set_nbio_accept(b, n)                                              \
	BIO_ctrl(b, BIO_C_SET_ACCEPT, 1, (n) ? (void *)"a" : NULL)
#define BIO_set_accept_bios(b, bio)                                            \
	BIO_ctrl(b, BIO_C_SET_ACCEPT, 2, (char *)bio)

#define BIO_BIND_NORMAL 0
#define BIO_BIND_REUSEADDR_IF_UNUSED 1
#define BIO_BIND_REUSEADDR 2
#define BIO_set_bind_mode(b, mode) BIO_ctrl(b, BIO_C_SET_BIND_MODE, mode, NULL)
#define BIO_get_bind_mode(b, mode) BIO_ctrl(b, BIO_C_GET_BIND_MODE, 0, NULL)

#define BIO_do_connect(b) BIO_do_handshake(b)
#define BIO_do_accept(b) BIO_do_handshake(b)
#define BIO_do_handshake(b) BIO_ctrl(b, BIO_C_DO_STATE_MACHINE, 0, NULL)

/* BIO_s_proxy_client() */
#define BIO_set_url(b, url) BIO_ctrl(b, BIO_C_SET_PROXY_PARAM, 0, (char *)(url))
#define BIO_set_proxies(b, p) BIO_ctrl(b, BIO_C_SET_PROXY_PARAM, 1, (char *)(p))
/* BIO_set_nbio(b,n) */
#define BIO_set_filter_bio(b, s)                                               \
	BIO_ctrl(b, BIO_C_SET_PROXY_PARAM, 2, (char *)(s))
/* BIO *BIO_get_filter_bio(BIO *bio); */
#define BIO_set_proxy_cb(b, cb)                                                \
	BIO_callback_ctrl(b, BIO_C_SET_PROXY_PARAM, 3, (void *(*cb)()))
#define BIO_set_proxy_header(b, sk)                                            \
	BIO_ctrl(b, BIO_C_SET_PROXY_PARAM, 4, (char *)sk)
#define BIO_set_no_connect_return(b, bool)                                     \
	BIO_int_ctrl(b, BIO_C_SET_PROXY_PARAM, 5, bool)

#define BIO_get_proxy_header(b, skp)                                           \
	BIO_ctrl(b, BIO_C_GET_PROXY_PARAM, 0, (char *)skp)
#define BIO_get_proxies(b, pxy_p)                                              \
	BIO_ctrl(b, BIO_C_GET_PROXY_PARAM, 1, (char *)(pxy_p))
#define BIO_get_url(b, url) BIO_ctrl(b, BIO_C_GET_PROXY_PARAM, 2, (char *)(url))
#define BIO_get_no_connect_return(b) BIO_ctrl(b, BIO_C_GET_PROXY_PARAM, 5, NULL)

#define BIO_set_fd(b, fd, c) BIO_int_ctrl(b, BIO_C_SET_FD, c, fd)
#define BIO_get_fd(b, c) BIO_ctrl(b, BIO_C_GET_FD, 0, (char *)c)

#define BIO_set_fp(b, fp, c) BIO_ctrl(b, BIO_C_SET_FILE_PTR, c, (char *)fp)
#define BIO_get_fp(b, fpp) BIO_ctrl(b, BIO_C_GET_FILE_PTR, 0, (char *)fpp)

#define BIO_seek(b, ofs) (int)BIO_ctrl(b, BIO_C_FILE_SEEK, ofs, NULL)
#define BIO_tell(b) (int)BIO_ctrl(b, BIO_C_FILE_TELL, 0, NULL)

/* name is cast to lose const, but might be better to route through a function
   so we can do it safely */
#ifdef CONST_STRICT
/* If you are wondering why this isn't defined, its because CONST_STRICT is
 * purely a compile-time kludge to allow const to be checked.
 */
int BIO_read_filename(BIO *b, const char *name);
#else
#define BIO_read_filename(b, name)                                             \
	BIO_ctrl(b, BIO_C_SET_FILENAME, BIO_CLOSE | BIO_FP_READ, (char *)name)
#endif
#define BIO_write_filename(b, name)                                            \
	BIO_ctrl(b, BIO_C_SET_FILENAME, BIO_CLOSE | BIO_FP_WRITE, name)
#define BIO_append_filename(b, name)                                           \
	BIO_ctrl(b, BIO_C_SET_FILENAME, BIO_CLOSE | BIO_FP_APPEND, name)
#define BIO_rw_filename(b, name)                                               \
	BIO_ctrl(b, BIO_C_SET_FILENAME,                                        \
		 BIO_CLOSE | BIO_FP_READ | BIO_FP_WRITE, name)

/* WARNING WARNING, this ups the reference count on the read bio of the
 * SSL structure.  This is because the ssl read BIO is now pointed to by
 * the next_bio field in the bio.  So when you free the BIO, make sure
 * you are doing a BIO_free_all() to catch the underlying BIO. */
#define BIO_set_ssl(b, ssl, c) BIO_ctrl(b, BIO_C_SET_SSL, c, (char *)ssl)
#define BIO_get_ssl(b, sslp) BIO_ctrl(b, BIO_C_GET_SSL, 0, (char *)sslp)
#define BIO_set_ssl_mode(b, client) BIO_ctrl(b, BIO_C_SSL_MODE, client, NULL)
#define BIO_set_ssl_renegotiate_bytes(b, num)                                  \
	BIO_ctrl(b, BIO_C_SET_SSL_RENEGOTIATE_BYTES, num, NULL);
#define BIO_get_num_renegotiates(b)                                            \
	BIO_ctrl(b, BIO_C_GET_SSL_NUM_RENEGOTIATES, 0, NULL);
#define BIO_set_ssl_renegotiate_timeout(b, seconds)                            \
	BIO_ctrl(b, BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT, seconds, NULL);

/* defined in evp.h */
/* #define BIO_set_md(b,md)	BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */

#define BIO_get_mem_data(b, pp) BIO_ctrl(b, BIO_CTRL_INFO, 0, (char *)pp)
#define BIO_set_mem_buf(b, bm, c) BIO_ctrl(b, BIO_C_SET_BUF_MEM, c, (char *)bm)
#define BIO_get_mem_ptr(b, pp) BIO_ctrl(b, BIO_C_GET_BUF_MEM_PTR, 0, (char *)pp)
#define BIO_set_mem_eof_return(b, v)                                           \
	BIO_ctrl(b, BIO_C_SET_BUF_MEM_EOF_RETURN, v, NULL)

/* For the BIO_f_buffer() type */
#define BIO_get_buffer_num_lines(b)                                            \
	BIO_ctrl(b, BIO_C_GET_BUFF_NUM_LINES, 0, NULL)
#define BIO_set_buffer_size(b, size)                                           \
	BIO_ctrl(b, BIO_C_SET_BUFF_SIZE, size, NULL)
#define BIO_set_read_buffer_size(b, size)                                      \
	BIO_int_ctrl(b, BIO_C_SET_BUFF_SIZE, size, 0)
#define BIO_set_write_buffer_size(b, size)                                     \
	BIO_int_ctrl(b, BIO_C_SET_BUFF_SIZE, size, 1)
#define BIO_set_buffer_read_data(b, buf, num)                                  \
	BIO_ctrl(b, BIO_C_SET_BUFF_READ_DATA, num, buf)

/* Don't use the next one unless you know what you are doing :-) */
#define BIO_dup_state(b, ret) BIO_ctrl(b, BIO_CTRL_DUP, 0, (char *)(ret))

#define BIO_reset(b) (int)BIO_ctrl(b, BIO_CTRL_RESET, 0, NULL)
#define BIO_eof(b) (int)BIO_ctrl(b, BIO_CTRL_EOF, 0, NULL)
#define BIO_set_close(b, c) (int)BIO_ctrl(b, BIO_CTRL_SET_CLOSE, (c), NULL)
#define BIO_get_close(b) (int)BIO_ctrl(b, BIO_CTRL_GET_CLOSE, 0, NULL)
#define BIO_pending(b) (int)BIO_ctrl(b, BIO_CTRL_PENDING, 0, NULL)
#define BIO_wpending(b) (int)BIO_ctrl(b, BIO_CTRL_WPENDING, 0, NULL)
/* ...pending macros have inappropriate return type */
size_t BIO_ctrl_pending(BIO *b);
size_t BIO_ctrl_wpending(BIO *b);
#define BIO_flush(b) (int)BIO_ctrl(b, BIO_CTRL_FLUSH, 0, NULL)
#define BIO_get_info_callback(b, cbp)                                          \
	(int)BIO_ctrl(b, BIO_CTRL_GET_CALLBACK, 0, cbp)
#define BIO_set_info_callback(b, cb)                                           \
	(int)BIO_callback_ctrl(b, BIO_CTRL_SET_CALLBACK, cb)

/* For the BIO_f_buffer() type */
#define BIO_buffer_get_num_lines(b) BIO_ctrl(b, BIO_CTRL_GET, 0, NULL)

/* For BIO_s_bio() */
#define BIO_set_write_buf_size(b, size)                                        \
	(int)BIO_ctrl(b, BIO_C_SET_WRITE_BUF_SIZE, size, NULL)
#define BIO_get_write_buf_size(b, size)                                        \
	(size_t) BIO_ctrl(b, BIO_C_GET_WRITE_BUF_SIZE, size, NULL)
#define BIO_make_bio_pair(b1, b2) (int)BIO_ctrl(b1, BIO_C_MAKE_BIO_PAIR, 0, b2)
#define BIO_destroy_bio_pair(b)                                                \
	(int)BIO_ctrl(b, BIO_C_DESTROY_BIO_PAIR, 0, NULL)
#define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL)
/* macros with inappropriate type -- but ...pending macros use int too: */
#define BIO_get_write_guarantee(b)                                             \
	(int)BIO_ctrl(b, BIO_C_GET_WRITE_GUARANTEE, 0, NULL)
#define BIO_get_read_request(b)                                                \
	(int)BIO_ctrl(b, BIO_C_GET_READ_REQUEST, 0, NULL)
size_t BIO_ctrl_get_write_guarantee(BIO *b);
size_t BIO_ctrl_get_read_request(BIO *b);
int BIO_ctrl_reset_read_request(BIO *b);

/* ctrl macros for dgram */
#define BIO_ctrl_dgram_connect(b, peer)                                        \
	(int)BIO_ctrl(b, BIO_CTRL_DGRAM_CONNECT, 0, (char *)peer)
#define BIO_ctrl_set_connected(b, state, peer)                                 \
	(int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, state, (char *)peer)
#define BIO_dgram_recv_timedout(b)                                             \
	(int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL)
#define BIO_dgram_send_timedout(b)                                             \
	(int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL)
#define BIO_dgram_get_peer(b, peer)                                            \
	(int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_PEER, 0, (char *)peer)
#define BIO_dgram_set_peer(b, peer)                                            \
	(int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)peer)

/* These two aren't currently implemented */
/* int BIO_get_ex_num(BIO *bio); */
/* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */
int BIO_set_ex_data(BIO *bio, int idx, void *data);
void *BIO_get_ex_data(BIO *bio, int idx);
int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
			 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
unsigned long BIO_number_read(BIO *bio);
unsigned long BIO_number_written(BIO *bio);

#ifndef OPENSSL_NO_FP_API
#if defined(OPENSSL_SYS_WIN16) && defined(_WINDLL)
BIO_METHOD *BIO_s_file_internal(void);
BIO *BIO_new_file_internal(char *filename, char *mode);
BIO *BIO_new_fp_internal(FILE *stream, int close_flag);
#define BIO_s_file BIO_s_file_internal
#define BIO_new_file BIO_new_file_internal
#define BIO_new_fp BIO_new_fp_internal
#else /* FP_API */
BIO_METHOD *BIO_s_file(void);
BIO *BIO_new_file(const char *filename, const char *mode);
//BIO *BIO_new_fp(FILE *stream, int close_flag);
#define BIO_s_file_internal BIO_s_file
#define BIO_new_file_internal BIO_new_file
#define BIO_new_fp_internal BIO_s_file
#endif /* FP_API */
#endif
BIO *BIO_new(BIO_METHOD *type);
int BIO_set(BIO *a, BIO_METHOD *type);
int BIO_free(BIO *a);
void BIO_vfree(BIO *a);
int BIO_read(BIO *b, void *data, int len);
int BIO_gets(BIO *bp, char *buf, int size);
int BIO_write(BIO *b, const void *data, int len);
int BIO_puts(BIO *bp, const char *buf);
int BIO_indent(BIO *b, int indent, int max);
long BIO_ctrl(BIO *bp, int cmd, long larg, void *parg);
long BIO_callback_ctrl(BIO *b, int cmd,
		       void (*fp)(struct bio_st *, int, const char *, int, long,
				  long));
char *BIO_ptr_ctrl(BIO *bp, int cmd, long larg);
long BIO_int_ctrl(BIO *bp, int cmd, long larg, int iarg);
BIO *BIO_push(BIO *b, BIO *append);
BIO *BIO_pop(BIO *b);
void BIO_free_all(BIO *a);
BIO *BIO_find_type(BIO *b, int bio_type);
BIO *BIO_next(BIO *b);
BIO *BIO_get_retry_BIO(BIO *bio, int *reason);
int BIO_get_retry_reason(BIO *bio);
BIO *BIO_dup_chain(BIO *in);

int BIO_nread0(BIO *bio, char **buf);
int BIO_nread(BIO *bio, char **buf, int num);
int BIO_nwrite0(BIO *bio, char **buf);
int BIO_nwrite(BIO *bio, char **buf, int num);

#ifndef OPENSSL_SYS_WIN16
long BIO_debug_callback(BIO *bio, int cmd, const char *argp, int argi,
			long argl, long ret);
#else
long _far _loadds BIO_debug_callback(BIO *bio, int cmd, const char *argp,
				     int argi, long argl, long ret);
#endif

BIO_METHOD *BIO_s_mem(void);
BIO *BIO_new_mem_buf(void *buf, int len);
BIO_METHOD *BIO_s_socket(void);
BIO_METHOD *BIO_s_connect(void);
BIO_METHOD *BIO_s_accept(void);
BIO_METHOD *BIO_s_fd(void);
#ifndef OPENSSL_SYS_OS2
BIO_METHOD *BIO_s_log(void);
#endif
BIO_METHOD *BIO_s_bio(void);
BIO_METHOD *BIO_s_null(void);
BIO_METHOD *BIO_f_null(void);
BIO_METHOD *BIO_f_buffer(void);
#ifdef OPENSSL_SYS_VMS
BIO_METHOD *BIO_f_linebuffer(void);
#endif
BIO_METHOD *BIO_f_nbio_test(void);
#ifndef OPENSSL_NO_DGRAM
BIO_METHOD *BIO_s_datagram(void);
#endif

/* BIO_METHOD *BIO_f_ber(void); */

int BIO_sock_should_retry(int i);
int BIO_sock_non_fatal_error(int error);
int BIO_dgram_non_fatal_error(int error);

int BIO_fd_should_retry(int i);
int BIO_fd_non_fatal_error(int error);
int BIO_dump_cb(int (*cb)(const void *data, size_t len, void *u), void *u,
		const char *s, int len);
int BIO_dump_indent_cb(int (*cb)(const void *data, size_t len, void *u),
		       void *u, const char *s, int len, int indent);
int BIO_dump(BIO *b, const char *bytes, int len);
int BIO_dump_indent(BIO *b, const char *bytes, int len, int indent);
#ifdef OPENSSL_NO_FP_API
int BIO_dump_fp(FILE *fp, const char *s, int len);
int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent);
#endif
struct hostent *BIO_gethostbyname(const char *name);
/* We might want a thread-safe interface too:
 * struct hostent *BIO_gethostbyname_r(const char *name,
 *     struct hostent *result, void *buffer, size_t buflen);
 * or something similar (caller allocates a struct hostent,
 * pointed to by "result", and additional buffer space for the various
 * substructures; if the buffer does not suffice, NULL is returned
 * and an appropriate error code is set).
 */
int BIO_sock_error(int sock);
int BIO_socket_ioctl(int fd, long type, void *arg);
int BIO_socket_nbio(int fd, int mode);
int BIO_get_port(const char *str, unsigned short *port_ptr);
int BIO_get_host_ip(const char *str, unsigned char *ip);
int BIO_get_accept_socket(char *host_port, int mode);
int BIO_accept(int sock, char **ip_port);
int BIO_sock_init(void);
void BIO_sock_cleanup(void);
int BIO_set_tcp_ndelay(int sock, int turn_on);

BIO *BIO_new_socket(int sock, int close_flag);
BIO *BIO_new_dgram(int fd, int close_flag);
BIO *BIO_new_fd(int fd, int close_flag);
BIO *BIO_new_connect(char *host_port);
BIO *BIO_new_accept(char *host_port);

int BIO_new_bio_pair(BIO **bio1, size_t writebuf1, BIO **bio2,
		     size_t writebuf2);
/* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints.
 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL.
 * Size 0 uses default value.
 */

void BIO_copy_next_retry(BIO *b);

/*long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);*/

#ifdef __GNUC__
#define __bio_h__attr__ __attribute__
#else
#define __bio_h__attr__(x)
#endif
int BIO_printf(BIO *bio, const char *format, ...)
	__bio_h__attr__((__format__(__printf__, 2, 3)));
//int BIO_vprintf(BIO *bio, const char *format, va_list args)
//	__bio_h__attr__((__format__(__printf__,2,0)));
//int BIO_snprintf(char *buf, size_t n, const char *format, ...)
//	__bio_h__attr__((__format__(__printf__,3,4)));
//int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
//	__bio_h__attr__((__format__(__printf__,3,0)));
#undef __bio_h__attr__

/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
 * made after this point may be overwritten when the script is next run.
 */
void ERR_load_BIO_strings(void);

/* Error codes for the BIO functions. */

/* Function codes. */
#define BIO_F_ACPT_STATE 100
#define BIO_F_BIO_ACCEPT 101
#define BIO_F_BIO_BER_GET_HEADER 102
#define BIO_F_BIO_CALLBACK_CTRL 131
#define BIO_F_BIO_CTRL 103
#define BIO_F_BIO_GETHOSTBYNAME 120
#define BIO_F_BIO_GETS 104
#define BIO_F_BIO_GET_ACCEPT_SOCKET 105
#define BIO_F_BIO_GET_HOST_IP 106
#define BIO_F_BIO_GET_PORT 107
#define BIO_F_BIO_MAKE_PAIR 121
#define BIO_F_BIO_NEW 108
#define BIO_F_BIO_NEW_FILE 109
#define BIO_F_BIO_NEW_MEM_BUF 126
#define BIO_F_BIO_NREAD 123
#define BIO_F_BIO_NREAD0 124
#define BIO_F_BIO_NWRITE 125
#define BIO_F_BIO_NWRITE0 122
#define BIO_F_BIO_PUTS 110
#define BIO_F_BIO_READ 111
#define BIO_F_BIO_SOCK_INIT 112
#define BIO_F_BIO_WRITE 113
#define BIO_F_BUFFER_CTRL 114
#define BIO_F_CONN_CTRL 127
#define BIO_F_CONN_STATE 115
#define BIO_F_FILE_CTRL 116
#define BIO_F_FILE_READ 130
#define BIO_F_LINEBUFFER_CTRL 129
#define BIO_F_MEM_READ 128
#define BIO_F_MEM_WRITE 117
#define BIO_F_SSL_NEW 118
#define BIO_F_WSASTARTUP 119

/* Reason codes. */
#define BIO_R_ACCEPT_ERROR 100
#define BIO_R_BAD_FOPEN_MODE 101
#define BIO_R_BAD_HOSTNAME_LOOKUP 102
#define BIO_R_BROKEN_PIPE 124
#define BIO_R_CONNECT_ERROR 103
#define BIO_R_EOF_ON_MEMORY_BIO 127
#define BIO_R_ERROR_SETTING_NBIO 104
#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105
#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106
#define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107
#define BIO_R_INVALID_ARGUMENT 125
#define BIO_R_INVALID_IP_ADDRESS 108
#define BIO_R_IN_USE 123
#define BIO_R_KEEPALIVE 109
#define BIO_R_NBIO_CONNECT_ERROR 110
#define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111
#define BIO_R_NO_HOSTNAME_SPECIFIED 112
#define BIO_R_NO_PORT_DEFINED 113
#define BIO_R_NO_PORT_SPECIFIED 114
#define BIO_R_NO_SUCH_FILE 128
#define BIO_R_NULL_PARAMETER 115
#define BIO_R_TAG_MISMATCH 116
#define BIO_R_UNABLE_TO_BIND_SOCKET 117
#define BIO_R_UNABLE_TO_CREATE_SOCKET 118
#define BIO_R_UNABLE_TO_LISTEN_SOCKET 119
#define BIO_R_UNINITIALIZED 120
#define BIO_R_UNSUPPORTED_METHOD 121
#define BIO_R_WRITE_TO_READ_ONLY_BIO 126
#define BIO_R_WSASTARTUP 122

#ifdef __cplusplus
}
#endif
#endif
